Finding the Fourth Proportional to 420,754.08, 580,690.47 and 236,998.70
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Solution
The fourth proportional to 420,754.08, 580,690.47 and 236,998.70 is: 327,086.28
Step by Step Solution
- Step 1: Write the proportion equation
420,754.08 : 580,690.47 = 236,998.70 : x - Step 2: Convert to fraction form
420,754.08/580,690.47 = 236,998.70/x - Step 3: Cross multiply
420,754.08x = 580,690.47 × 236,998.70 - Step 4: Simplify right side
420,754.08x = 137,622,886,492.39 - Step 5: Solve for x
x = 137,622,886,492.39/420,754.08 - Step 6: Final answer
x = 327,086.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.